the difference is mainly in the wood. the 14's have slimmer forearms and buttstocks. thats why a lot of them you see have cracks. the older 14's have some internal differences and were modified to enhance reliability but from an end user standpoint the differences are minimal. as a rem pump collector for many years, my suggestion would be to find a decent model 141 that has already been drilled and tapped and use that for your woods gun. they can be had for around $400 usually. the problem i have found with a lot of 14's is that they were used pretty hard and show it. plus putting a scope on a model 14 kind of makes it look funny in my opinion. now if you start getting the collector bug, you will probably want to seek out the cleaner model 14's that are not modified. they make great open site guns and if you can find the carbine models you will love them. beware of cut down models claiming to be original carbines. the originals as pretty easy to spot. i have attached a photo of some of my carbines so you can get an idea of what they look like. if you want any more info, this is the place to find it. the experts are all members here. i can't claim to be an expert, but i play one on the internet.
Top gun is a 1927 model 14R carbine in 30 rem
Next down is a 1918 model 14R in 30 rem
Next down is a 1921 model 14R in 35 rem with rifle buttstock
Bottom is the 1939 model 141R in 32 rem
